Great Plains P17921E Operator Manual - Manual (Page 19)

19 UniPress
Operating Instructions
2.7 Preceding & Trailing
Implements
Adding a preceding or trailing
implement to the UniPress will
affect the stability and handling
of the machine both in transport
and work.
2.7.1 Hitching a Disc Cultivator
Ahead of the UniPress
1. Remove the transport straps from the
disc cultivator, exercise great CARE
when extending the axle cylinder.
2. Reverse the disc cultivator up to the
UniPress drawbar ensuring that the
two drawbars are aligned allowing
a slight clearance to enable the
machines to be coupled together.
3. Lower the disc cultivator to the ground.
4. Connect the hydraulic hoses from the
UniPress into the disc cultivator rear
outlets ensuring that the wing hoses
are together and the drawbar cylinder
hoses are together. Ensure that the
folding circuits and lift drawbar circuits
are coupled correctly.
5. Raise the UniPress drawbar above
the disc drawbar (200mm approx.).
Depth control shims may need to be
removed.
6. Raise the disc cultivator to the same
height as the UniPress drawbar then
reverse the disc cultivator to couple the
two machines together.
7. Fit the drawbar pin.
8. Operate the hydraulics to lower the rear
axle and drawbar, tilting the UniPress
onto the road transport wheels. Fully
extend the drawbar cylinders.
9. Fully raise the levelling boards.
10. Operate the hydraulics to fold the
wings.
11. Operate the hydraulics to lift the disc
cultivator into the transport position.
12. Fit the disc cultivator transport straps.
13. Fit the UniPress wing transport strap
to tie the two wing sections together.
14. Ensure that parking stands are locked
up in their work position.
With both machines in the transport position
i.e. raised and folded, the chassis of the disc
cultivator should be slightly nose down or
horizontal even when the downward load
from the UniPress is applied to the drawbar
of the disc cultivator.
The frame may be levelled by altering the
rearward tilt of the UniPress to increase or
reduce the loading on the disc rear drawbar.
2. Transportation / Installation